🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.79

Radius: 1.26

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 0.51 AU - 0.83 AU

Year: 195 Days

Day: 47.7 Hours

Environment

Temp: 158 °C

Axial Tilt: 101.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.21

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 1.58 AU - 1.82 AU

Year: 786 Days

Day: 40.6 Hours

Environment

Temp: -31 °C

Axial Tilt: 38.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 76,890,923 km

• M1: 43,383 km (0.053 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.58

Radius: 1.2

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 1.59 AU - 1.97 AU

Year: 842 Days

Day: 30.8 Hours

Environment

Temp: -39 °C

Axial Tilt: 22.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.92 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.38

Radius: 1.14

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 2.81 AU - 3.03 AU

Year: 1770 Days

Day: 46.8 Hours

Environment

Temp: -87 °C

Axial Tilt: 39.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 5.2 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.97

Radius: 1.55

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 4.59 AU - 5.81 AU

Year: 4207 Days

Day: 19.3 Hours

Environment

Temp: -133 °C

Axial Tilt: 8.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 76,890,923 km

• M1: 36,352 km (0.086 R)
• M2: 3,304,916 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 772.5

Radius: 9.9

Gravity: 7.88 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 5.12 AU - 5.76 AU

Year: 4501 Days

Day: 14 Hours

Environment

Temp: -130 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 76,890,923 km

• M1: 123,119 km (0.062 R)
• M2: 506,688 km (0.081 R)
• M3: 1,827,637 km (0.096 R)
• M4: 2,379,055 km (0.072 R)
• M5: 4,109,005 km (0.038 R)
• M6: 4,591,607 km (0.085 R)
• M7: 5,670,657 km (0.068 R)
• M8: 6,977,245 km (0.068 R)
• M9: 7,350,491 km (0.043 R)
• M10: 8,063,176 km (0.098 R)
• M11: 8,665,905 km (0.107 R)
• M12: 11,804,618 km (0.115 R)
• M13: 14,347,184 km (0.069 R)
• M14: 15,232,504 km (0.104 R)
• M15: 17,050,717 km (0.058 R)
• M16: 18,554,624 km (0.119 R)
• M17: 19,074,925 km (0.069 R)
• M18: 19,806,309 km (0.091 R)
• M19: 24,593,142 km (0.038 R)
• M20: 26,755,729 km (0.062 R)

Asteroid Belt

Center: 6.43 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 7.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 538

Radius: 9.1

Gravity: 6.5 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 6.66 AU - 8.16 AU

Year: 7156 Days

Day: 7.4 Hours

Environment

Temp: -164 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 76,890,923 km

• M1: 113,246 km (0.065 R)
• M2: 417,079 km (0.101 R)
• M3: 964,457 km (0.101 R)
• M4: 1,439,132 km (0.071 R)
• M5: 1,731,296 km (0.085 R)
• M6: 2,094,669 km (0.087 R)
• M7: 2,438,744 km (0.105 R)
• M8: 2,820,518 km (0.052 R)
• M9: 3,369,991 km (0.096 R)
• M10: 5,853,765 km (0.105 R)
• M11: 7,210,169 km (0.099 R)
• M12: 8,000,793 km (0.111 R)
• M13: 9,272,076 km (0.109 R)
• M14: 10,768,055 km (0.04 R)
• M15: 11,449,024 km (0.075 R)
• M16: 12,262,089 km (0.103 R)
• M17: 16,214,165 km (0.093 R)
• M18: 25,060,037 km (0.114 R)
• M19: 25,482,352 km (0.115 R)
• M20: 28,026,263 km (0.107 R)
• M21: 33,715,321 km (0.039 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 970.2

Radius: 4.3

Gravity: 52.47 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 12.99 AU - 13.47 AU

Year: 17072 Days

Day: 21 Hours

Environment

Temp: -183 °C

Axial Tilt: 169.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (45)

Outer Limit: 76,890,923 km

• M1: 53,556 km (0.058 R)
• M2: 214,673 km (0.098 R)
• M3: 374,144 km (0.055 R)
• M4: 860,487 km (0.049 R)
• M5: 1,000,660 km (0.078 R)
• M6: 1,516,025 km (0.119 R)
• M7: 2,342,553 km (0.041 R)
• M8: 2,666,881 km (0.085 R)
• M9: 2,942,141 km (0.076 R)
• M10: 3,319,726 km (0.09 R)
• M11: 4,236,462 km (0.11 R)
• M12: 4,717,419 km (0.072 R)
• M13: 4,897,685 km (0.099 R)
• M14: 5,233,831 km (0.078 R)
• M15: 5,665,271 km (0.088 R)
• M16: 6,334,722 km (0.115 R)
• M17: 6,554,332 km (0.063 R)
• M18: 6,870,282 km (0.102 R)
• M19: 9,543,297 km (0.075 R)
• M20: 12,219,902 km (0.116 R)
• M21: 17,238,013 km (0.117 R)
• M22: 18,543,853 km (0.112 R)
• M23: 20,007,668 km (0.106 R)
• M24: 21,057,695 km (0.051 R)
• M25: 25,405,159 km (0.102 R)
• M26: 26,295,865 km (0.108 R)
• M27: 30,314,513 km (0.119 R)
• M28: 32,339,768 km (0.112 R)
• M29: 35,820,163 km (0.045 R)
• M30: 45,595,337 km (0.12 R)
• M31: 48,416,752 km (0.119 R)
• M32: 49,268,114 km (0.075 R)
• M33: 50,303,032 km (0.058 R)
• M34: 55,139,531 km (0.098 R)
• M35: 57,574,985 km (0.119 R)
• M36: 59,691,046 km (0.082 R)
• M37: 60,866,736 km (0.104 R)
• M38: 63,873,504 km (0.119 R)
• M39: 64,691,654 km (0.077 R)
• M40: 66,767,624 km (0.059 R)
• M41: 69,748,062 km (0.076 R)
• M42: 70,398,065 km (0.116 R)
• M43: 72,815,866 km (0.109 R)
• M44: 75,972,531 km (0.108 R)
• M45: 76,890,912 km (0.113 R)

Kuiper Belt

Range: 30.9 - 50.9 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 239 - 12,050 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit